Porthole picture frame



FIG. 1 is a perspective view of a porthole picture frame in an open configuration in accordance with the present invention;

FIG. 2 is a front view thereof, with the porthole picture frame in a closed configuration in accordance with the present invention;

FIG. 3 is a right side view thereof, with the porthole picture frame in the closed configuration in accordance with the present invention;

FIG. 4 is a back view thereof in accordance with the present invention;

FIG. 5 is a left side view thereof, with the porthole picture frame in the closed configuration in accordance with the present invention; and,

FIG. 6 is a back view thereof, with the porthole picture frame in the closed configuration attached in accordance with the present invention.

The broken lines showing of a picture frame stand depicts an environment only and forms no part of the claimed invention. 

CLAIM The ornamental design for a porthole picture frame, as shown and described. 